centos安装mongodb

  • 分类 软件 ·
  • 发表于 2024-01-04 14:35:58

以centos安装mongodb4.2为例

添加yum源

创建repo/etc/yum.repos.d/mongodb-org-4.2.repo，内容为

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[mongodb-org-4.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/7Server/mongodb-org/4.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-4.2.asc

安装mongodb

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sudo yum install -y mongodb-org

启动mongodb

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sudo systemctl start mongod

开机运行mongodb

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sudo systemctl enable mongod

创建用户

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mongo 
use admin
db.createUser({user: 'root', pwd: 'root', roles: ['readWriteAnyDatabase']})

修改配置开启认证

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vi /etc/mongod.conf
# 添加
security:
  authorization: enabled

验证登录

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mongosh -u root --authenticationDatabase admin
# 输入密码

jenkins远程触发构建

jenkins远程触发构建的方法介绍

方式一

设置API Token，其它Basic Auth调用任务构建，此方式适用于脚本调用和代码调用

设置API Token

指定用户->用户页面->设置->API Token

curl调用

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# jobName就是点进jenkins任务页面，地址栏url里的
curl http://hostname/jobName/build -u userName:APIToken
# 带参数
curl http://hostname/jobName/buildWithParameters -u userName:APIToken

方式二

使用Build Authorization Token Root插件，适合webhook之类的

  • 安装Build Authorization Token Root插件
  • 设置API Token
  • job页面，勾选“触发远程构建 (例如,使用脚本)”，身份验证令牌中填入API Token

直接浏览器输入测试：

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http://hostname/buildByToken/build?job=jobName&token=APIToken
http://hostname/buildByToken/buildWithParameters?job=jobName&token=APIToken

elasticsearch分页大于10000条数据限制修改

elasticsearch采用from+size分页时，数据量大于1W会报错

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Result window is too large, from + size must be less than or equal to: [10000] but was [100001]

解决方法

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# 所有索引
curl -X PUT -H 'Content-Type: application/json' 172.24.0.171:9200/_all/_settings -d '{ "index.max_result_window" :"100000"}'
# 指定product_order索引
curl -X PUT -H 'Content-Type: application/json' 172.24.0.171:9200/product_order/_settings -d '{ "index.max_result_window" :"100000"}'

实现网站变灰

css实现网站变灰

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html {
    -webkit-filter: grayscale(100%);
    -moz-filter: grayscale(100%);
    -ms-filter: grayscale(100%);
    -o-filter: grayscale(100%);
    filter: grayscale(100%);
    -webkit-filter: gray;
    filter: gray;
    filter: progid:dximagetransform.microsoft.basicimage(grayscale=1) /*ie*/
}

springboot跨域设置

  • 分类 java ·
  • 发表于 2022-12-01 14:05:45

springboot提供了两种跨域方式

  • 实现WebMvcConfigurer接口的addCorsMappings方法
  • FilterRegistrationBean添加CorsFilter类

方式一

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@Configuration
public class WebConfig implements WebMvcConfigurer {

    @Override
    public void addCorsMappings(CorsRegistry registry) {
        registry.addMapping("/**")
                .allowedMethods("*")
                .allowCredentials(true)
                .allowedMethods("GET", "POST", "PUT", "DELETE", "OPTIONS")
                .maxAge(3600);
    }
    
}

方式二

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@Configuration
public class WebConfig {

    @Bean
    public FilterRegistrationBean<CorsFilter> corsFilter() {
        UrlBasedCorsConfigurationSource source = new UrlBasedCorsConfigurationSource();
        CorsConfiguration config = new CorsConfiguration();
        config.setAllowCredentials(true);
        config.addAllowedOriginPattern("*");
        config.addAllowedHeader("*");
        config.addAllowedMethod("*");
        source.registerCorsConfiguration("/**", config);
        FilterRegistrationBean<CorsFilter> bean = new FilterRegistrationBean<>(new CorsFilter(source));
        bean.setName("corsFilter");
        return bean;
    }
    
}

区别

分使用场景

假如你用了servlet的filter，并filter前提返回了请求结果，用FilterRegistrationBean方式才行，因为此时请求还没到WebMvcConfigurer处理就已经返回了。

没这种情况两者行为一样。

方式三

跨域无非就是在header里写入控制跨域相关的字段信息，自己实现Filter或者Interceptor就行了。

wsl2和Proxifier兼容问题

使用过Proxifier后，发现wsl2出问题了，打开子系统时提示参考的对象类型不支持尝试的操作。，搜了下网上的解决方法是通过下载NoLsp.exe解决

问题链接：https://github.com/microsoft/WSL/issues/4177#issuecomment-597736482，提供的用不了

这个里的可以用，https://github.com/dyingsu/nolsp

下载之后，管理员打开cmd执行命令

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NoLsp.exe C:\windows\system32\wsl.exe

方法二

管理员身份在CMD执行

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netsh winsock reset

清理过期日志文件

  • 分类 linux ·
  • 发表于 2022-10-13 09:53:37

清理过期日志文件的方法

用find+exec

用find找出指定时间的文件，配合exec执行删除

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# -mtime 指定文件修改时间
# 如清理2天前的
find log_dir -mtime +2 -type f -name "*.log" -exec rm -rf {} \;

用tmpwatch

使用tmpwatch清理目录，文件最后一次被访问的时间，单位是小时；这个命令只适全整个目录下都是日志的情况

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# 如清理2天前的
tmpwatch -mdfv  48 log_dir

如何查询指定时间范围内的日志

搞代码的都离不开通过查看日志处理问题；服务器上记录的日志都比较大，不会把整个日志文件拿来分析，通常会截取时间范围内的日志来分析问题，介绍几种查询时间范围日志方法。

处理文件肯定是离不开linux三剑客grep、sed、awk的。

演示截取2点到9点的日志

测试日志文件test.log，模拟所有2点到11点日志

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{"timestamp":"2022-09-27T02:12:59+08:00","level":"debug"}
{"timestamp":"2022-09-27T02:14:42+08:00","level":"debug"}
{"timestamp":"2022-09-27T02:41:03+08:00","level":"debug"}
{"timestamp":"2022-09-27T02:45:59+08:00","level":"debug"}
{"timestamp":"2022-09-27T04:35:31+08:00","level":"debug"}
{"timestamp":"2022-09-27T04:35:31+08:00","level":"error"}
{"timestamp":"2022-09-27T04:35:31+08:00","level":"debug"}
{"timestamp":"2022-09-27T04:38:40+08:00","level":"debug"}
{"timestamp":"2022-09-27T04:49:55+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:21:04+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:21:04+08:00","level":"error"}
{"timestamp":"2022-09-27T09:21:04+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:21:04+08:00","level":"error"}
{"timestamp":"2022-09-27T09:21:04+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:21:19+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:30:30+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:30:35+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:33:46+08:00","level":"debug"}
{"timestamp":"2022-09-27T09:37:02+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:29:54+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:29:59+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:02+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:03+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:43+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:44+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:45+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:46+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:30:48+08:00","level":"debug"}
{"timestamp":"2022-09-27T10:56:22+08:00","level":"debug"}
{"timestamp":"2022-09-27T11:09:36+08:00","level":"debug"}
{"timestamp":"2022-09-27T11:09:41+08:00","level":"debug"}

正则方式

grep不支持范围，awk和sed支持范围，三个都支持正则匹配

查看详情»

git统计提交记录中修改过的文件

使用git的log命令

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# start_commit_id 起始提交ID
# end_commit_id 结束提交ID
git log --author=abc --name-only --pretty= start_commit_id..end_commit_id

只显示文件pretty必须为空

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# 显示commit_id和文件
git log --author=abc --name-only --pretty=oneline start_commit_id..end_commit_id